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Finding the Fourth Proportional to 77,018.66, 106,273.77 and 43,483.94

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Solution

The fourth proportional to 77,018.66, 106,273.77 and 43,483.94 is: 60,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,018.66 : 106,273.77 = 43,483.94 : x
  2. Step 2: Convert to fraction form
    77,018.66/106,273.77 = 43,483.94/x
  3. Step 3: Cross multiply
    77,018.66x = 106,273.77 × 43,483.94
  4. Step 4: Simplify right side
    77,018.66x = 4,621,202,238.25
  5. Step 5: Solve for x
    x = 4,621,202,238.25/77,018.66
  6. Step 6: Final answer
    x = 60,001.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.